Bismuth salt of iodized resorcin-sulfonic acid.



UNITED STATES PATENT OFFICE.

OTTO 13. MAY," OFNEW YORK N YL, ASSIGNOR"TO MORGENSTERN 8; COMPANY, OFNEW YORK, N. Y., A CORPORATION OF NEW"YORK.-

BISMUTH SALTOF IODIZED RESORCIN-SULFONIC ACID.

in Drawing. Application filed September 23,

v To all whom it may concern:

I Be it known that I, O'r'ro B. MAY, a subect'of the Emperor of Germany,at present resldlngin'the city of New- Yorlqborough of -Manhat-tan,county and :State of New York,

have invented certain new and useful Improvements -in Bismuth SaltsoffIodi zed R'esorcin-Sulfonic Acid, of which the following is a full,clear, and exact specificasulfomc acid, and also to the-method 0 j tion.

My inventionhrelates to certain'new anduseful" improvements inantiseptics, and especially to bismuthsalts ofiodize'd-resoi'cinproducing the same. I It has long been known that'could such' a product be satisfactorily prepared, it wouldpossessextremely'valuable therapeutic properties, combining the antisepticqualities of the halogen phenolic bodies with themechanically soothingaction of the bismuth.

. The preparation of such a product, however,

has heretofore involved a )parently insuperable difiiculties because 0the peculiart'endency of bismuth to' fo'rm' unexpected and varyingcombinations, but by my novel methods I have been .able'to prepare asatisfac:

tory product constituting av new compound possessing the desiredproperties wlnch is represented in one form substantially by the formulaI One method of'practicing my'invention is astfollows:

. Two hundred andjsixty-five (265 grams ofpotassiumiodo-fresorcin-sulfonate are dissolved in two liters of waterand to this'a' solution of ifourjhundredpand eighty-one and. water are added. Tothis enough of (481.) grams, of bismuth nitrate in glycerin sodiumbicarbonate isadded for neutraliza tionand (the. resulting precipitateis washed by decantation with the necessary quantity of; water at alow-temperature.- .The washed Specification of Letters Patent, PatentedSept; 12, 191-1.

1910. Serial NO. 583,398.

(Specimens.

product is then dried in vacuo. The reaction taking place in theabove-described illustrative example may be represented by the.following equation:

' The structural formula of the product may be illustrated bythefollowing formula BLBBiKOH);

1.- The method of producing bismuth iodo- I resorcin-sulfonate,consisting in bringing into reaction a soluble salt of iodizedresorcin-sulfonic acid and a solutlon of a blsmuth salt, andneutra-lizing the mixture with a Weak alkali.

1 2. 'Asa new product, 'a bismuth salt of iodized resorcin-sulfonicacid; '3;-,A new antiseptic product formedfrom ilbi'smuth and .iodizedresorcin-sulfonic acid iodized resorcin-sulfonic aeid having subandconsisting of an. amorphous brownish stantially the formulapowder--s1ightly hygroscopic partly decomp0sab1e by water with thefoimation of bis- (QHZ(QHhISOQQ'BIBBKOHh' 5 math hydroxifl andiodo-resorcin-sulfonic In witness whereof I have hereunto set acid,readily, soluble with decomposition in my'hand. in the presence of twosubscribing concentrated hydrochloric acid, andnupon witnesses. 1 1

being heated losing first iodin, then charring' OTTO'B. MAY.-

and finally leaving a yellow residue of bis- Witnesses: v I 10 ninthoxid. a I ISADORE BERNBT'EIN,

, 4, As a new product, a bismuth salt of ALEXANDER V: M RGENBTERN.

